... options 3.offer different configration for different fields GC9310 Gas Chromatograph Display: LCD Interface: RS232 serial interface ... , TVOC,NMTHC)2. Natgas, Artificial Gas, Coal-Mine Gas, LPG, Mixed Gas, High Purity Gas (Ar,He,O2,N2,CO2)3. Food ... (methanol, ethanol, ethyl acetate, ethyl butyrate, acetaldehyde)5. Dissolved Gas (hydrogen, methane, ethane, ethylene, acetylene, carbon monoxide, carbon ...